import java.util.Scanner; // Scanner is in the java.util package

public class ComputeAverage 
{
  public static void main(String[] args) 
  {
    Scanner input = new Scanner(System.in);
    
    // Prompt the user to enter three numbers
    System.out.print("Enter three numbers: ");
    double number1 = input.nextDouble();
    double number2 = input.nextDouble();
    double number3 = input.nextDouble();

    // Compute average
    double average = (number1 + number2 + number3) / 3;

    System.out.println(average);
  } 
}